Collapsible trailer



FIG. 1 is a perspective view of the collapsible trailer embodying the design of the present invention;

FIG. 2 is an enlarged front elevational view thereof;

FIG. 3 is an enlarged rear elevational view thereof;

FIG. 4 is an enlarged side elevational view thereof, the side opposite being a mirror image of the side shown in FIG. 4;

FIG. 5 is an enlarged top plan view thereof; and,

FIG. 6 is an enlarged bottom plan view thereof. 

The ornamental design for a collapsible trailer, as shown and described. 